3206406 has 16 divisors (see below), whose sum is σ = 7329024. Its totient is φ = 916104.

The previous prime is 3206393. The next prime is 3206417. The reversal of 3206406 is 6046023.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38130 + ... + 38213.

It is an arithmetic number, because the mean of its divisors is an integer number (458064).

Almost surely, 2^3206406 is an apocalyptic number.

3206406 is an abundant number, since it is smaller than the sum of its proper divisors (4122618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3206406 is a wasteful number, since it uses less digits than its factorization.

3206406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76355.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3206406 is about 1790.6440182236. The cubic root of 3206406 is about 147.4595273425.

The spelling of 3206406 in words is "three million, two hundred six thousand, four hundred six".